628300129 has 2 divisors, whose sum is σ = 628300130. Its totient is φ = 628300128.

The previous prime is 628300097. The next prime is 628300139. The reversal of 628300129 is 921003826.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399080529 + 229219600 = 19977^2 + 15140^2 .

It is a cyclic number.

It is not a de Polignac number, because 628300129 - 2⁵ = 628300097 is a prime.

It is a super-2 number, since 2×628300129² = 789522104202833282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 628300129.

It is not a weakly prime, because it can be changed into another prime (628300139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314150064 + 314150065.

It is an arithmetic number, because the mean of its divisors is an integer number (314150065).

Almost surely, 2^628300129 is an apocalyptic number.

It is an amenable number.

628300129 is a deficient number, since it is larger than the sum of its proper divisors (1).

628300129 is an equidigital number, since it uses as much as digits as its factorization.

628300129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 628300129 is about 25065.9156824561. The cubic root of 628300129 is about 856.4901701191.

The spelling of 628300129 in words is "six hundred twenty-eight million, three hundred thousand, one hundred twenty-nine".